Call it the Whodle — an "8-bit multilevel platform game [that] is a masterpiece of interactive theater," as CNET says.

Now, we are by no means Doctor Who aficionados. But we do know a potentially addictive game when we see one. The object is to "rescue" the letters G-O-O-G-L-E from a Dalek. You get to choose your favorite Doctor. Buzzfeed does a good job of explaining the game.

As for the show's anniversary, there's a global simulcast Saturday (starting at 2:50 p.m. ET) that the BBC says has the Doctors (yes, that's plural) going on their "greatest adventure."